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BBC Micro

Mythic Map

February 11, 2026 by Paul Bussey

Run straight away in Owlet – click below…

Run Mythic Map

🧭 Mythic Map – Essential How to Play Guide

Objective:
Find the Iron Crown, hidden somewhere in the ruins or buildings of a procedurally generated 20×20 world.

You begin in the centre of the map with 50 supplies. A yellow @ symbol shows your player position when you view the map.\

🎮 Controls

N / E / S / W — Turn to face a direction

T — Travel forward one tile (in the direction you’re facing)

M — View the map

G — Generate a new world

Q — Quit

You always move forward — turning changes your facing direction.

👀 What You See

Each turn, the game describes:

  • Your current location
  • What lies immediately ahead
  • What lies further in the distance
  • What can be seen on the horizon

Occasionally important features to your left or right

Think of it as surveying the landscape from your position.

🥾 Supplies & Survival

  • Moving consumes supplies.
  • Rough terrain (forests, hills) costs more.
  • Roads may cost less.
  • Some terrain is impassable.
  • If supplies reach 0, the game ends.

🏨 Replenishing Supplies

  • Find a Coaching Inn (marked as C on the map).
  • When you step onto an Inn:
  • You automatically rest.
  • Supplies +10

Plan routes carefully — Inns are your lifeline.

🗺 Map View

  • Press M to see the full map:
  • Terrain types are colour coded.
  • Your position is marked with “@”.
  • Inns are shown as a Magenta “C”

🏆 Winning

  • Locate the hidden quest location (in a ruin or building) to recover the Iron Crown and win.
  • Explore. Conserve supplies. Use Inns wisely. Survey the land before moving.

That’s all you need to begin.

Development and High Level Code Walkthrough

There’s a very deliberate lineage behind Mythic Map.

Years ago I was fascinated by the way The Lords of Midnight by Mike Singleton handled scale and perspective. It showed you what you could see from your position — mountains looming in the distance, forests rising beyond hills — all rendered through clever layered graphics on very limited hardware. You’ll see from one of my earlier projects in this Stardot subforum post “Landscaping” is a very simple version of this.

Mythic Map takes that same core principle — but applies it to text.

Instead of scaled bitmap landscapes, we now generate “scaled” narrative description:

  • Immediate foreground (1 tile ahead)
  • Mid-distance (2 tiles)
  • Horizon (3 tiles)
  • Side scanning for “important” landmarks

It’s essentially using the idea of Landscaping from The Lords of Midnight, distilled into MODE 7 prose.

Design Philosophy

The key idea:

The world is not just where you stand. It is what you perceive.

That’s why PROCLook is the heart of the game.

I’ll stay deliberately high level here.

[b]1. Setup & Data Structures[/b]
DIM M%(19,19)
DIM N$(6,5)
DIM VOC$(9), VAGUE$(6), PHR$(3)

M%(19,19) – The world grid (20×20).

Each cell encodes:

  • Terrain type (tens digit)
  • Subtype / progression stage (units digit)

N$() holds terrain names.
VOC$() adjectives.
PHR$() distance phrases.
VAGUE$() horizon descriptors.

This is lightweight but powerful: small data tables, combinatorial output.

PROCMakePath

The world is procedurally forged in layers:

  • Base terrain (woods vs hills)
  • Rivers carved with a directional path
  • Roads laid similarly
  • Ruins & buildings scattered
  • Quest location hidden in valid terrain

This is intentionally fast and replayable.

Notably:

  • Rivers and roads use staged progression (STP%) to simulate widening.
  • Impassable terrain is encoded in subtype 5.
  • Supplies introduce pressure.

This creates:

  • Movement constraints
  • Resource tension
  • Directional decision making

The Core Innovation – PROCLook

This is where the “Lords of Midnight principle” lives.

FOR DIST%=1 TO 3

We scan outward three tiles in the facing direction.
Each distance band:

  • Has different descriptive richness
  • Uses rank filtering (FNrank)
  • Adds side scanning for significant landmarks

The rank system is subtle but key:

DEF FNrank

  • Mountains, keeps, impassables = higher importance.
  • Trees and low features = lower importance.

This prevents descriptive overload while preserving drama.

The result is sparse but evocative and atmospheric!

Travel & Survival

PROCTravel handles:

  • Movement vectors based on facing
  • Impassable checks
  • Supply drain
  • Rest at Inns (+10 supplies)
  • Proximity tension message

Victory condition

This creates the gameplay loop:

Look → Decide → Travel → Consume Supplies → Repeat

Map Rendering


PROCPreRender builds colourised MAP_ROW$ strings.
It uses:

  • Character tables
  • Colour tables
  • Special overrides (e.g. Inn = “C”)

This means:

  • The map draws instantly.
  • No recalculation during display.

What’s Working Well

The perception-based viewing model.

  • Distance layering.
  • Importance ranking (I think)
  • Procedural naming of rivers and roads.

Resource pressure loop.

Clean modular procedures.

Where It Needs Work

The English descriptions are functional — but not yet mythic.

Examples:
“Directly ahead, ancient a Forest awaits.”
“On the horizon, dark shapes can be seen.”

They work mechanically.
But they lack rhythm, cohesion, and narrative tone….so if there’s enough memory I think these could be improved.

What we need:

  • Better grammar flow (for sure)
  • Perhaps less repetition.
  • Stronger atmosphere?
  • Even occasional surprise phrases.
  • Maybe even variation in sentence structure.

Filed Under: BASIC Programming, BBC Micro B Tagged With: BBC Micro

The I.T. Crowd (Scotland) : Retro User Computer Group Jan 2025

December 23, 2024 by Paul Bussey

 

Event on Monday 13th January

This is a gathering for lovers of any retro microcomputers, especially those fond of the BBC Micro, Acorn Electron, Atom, and Archimedes/RISC OS machines. This event is aimed at bringing together a community of like-minded individuals in a comfortable and modern setting – the Falkirk Business Hub, in central Falkirk, Scotland.

Monday 13th January 2025 7:00PM running until 10:00PM

🕹 Event Features:

This is an informal gathering for…

  • – Show and Tell: Bring your own hardware to display and discuss with others.
  • – Collaborative Working: Spend time on hardware, programming, or gaming projects.
  • – Knowledge Exchange: Share ideas, insights, and skills with other enthusiasts.
  • – Advice on Repair and Upgrade: Reviving poorly Acorn machines.
  • – Socialize and Enjoy : There’s a kitchen for coffee, tea and biscuits. We’re in the town centre for bars, pubs and restaurants for potential afterwards gatherings.

🔎 Jan 2025 Focus

Acorn’s Sandbox Gaming Legacy

Celebrate the open-world and exploratory games of Acorn computers, including classics like Elite, Exile, Citadel, Repton, and The Lords of Midnight (inspired by Acorn-era gaming – I will have a simple version of this running for the BBC Micro). These games were influential for their freedom of choice and creativity, laying the groundwork for modern sandbox gaming.

Bringing in non-Acorn machines? See if you can find an early sandbox-style game for your own machine.

Ways to Contribute:

  • Game Demos: Showcase these classics on your BBC Micro, Acorn Electron, or Archimedes.
  • Custom Content: Share custom levels, mods, or unique strategies for games like Repton or Exile.
  • Personal Stories: Talk about your experiences with these games and their impact.
  • Competitions: Organize friendly challenges on Elite or Repton for prizes.
  • Hardware & Swaps: Bring spare hardware, peripherals, or game disks to trade or sell.

💻 All Are Welcome:
While the event tends to be Acorn-centric, we could welcome enthusiasts of other retro machines as well. We’ve had Sinclair, Atari, Commodore, Altair etc.

📅 Date & Time:
Monday 13th January 2025 7:00PM running until 10:00PM

📍 Location: Falkirk Business Hub

45 Vicar St, Falkirk FK1 1LL

Access : use the side door on Vicar Street. This also has disabled access.

Image

https://falkirkbusinesshub.co.uk/ – a contemporary venue centrally located, just a 2-minute walk from Grahamston Train Station and with seamless access to the M9 motorway between Stirling and Edinburgh. Numerous bars and restaurants are nearby for post-event socializing.
There is a car park next to the building which is free in the evenings.
Building includes disabled access and lifts.

Image

🚗🅿 There are two recommended car parks:-

i) Weir street car park which is next to the venue. Free parking in the evenings
ii) Melville street – one street away – also free in the evenings.

Tagged With: Acorn Archimedes, Acorn Atom, Acorn Electron, BBC Micro, Retro Computer Event, Sandbox games

The I.T. Crowd (Scotland) : Retro User Computer Group Sept 2024 (Day Event)

June 6, 2024 by Paul Bussey

 

Join us for an exciting day event dedicated to retro computer enthusiasts, with a special focus on Acorn machines. This ABUG event aims to bring together a community of like-minded individuals in a comfortable and modern setting at the Falkirk Business Hub in central Falkirk, Scotland.

Event Date and Time

Saturday, 28th September 2024
9:00 AM to 5:00 PM

Event Highlights

  • Workshops: Engage in hands-on workshops throughout the day (details to be confirmed).
  • Show and Tell: Bring your own hardware to display and discuss with fellow enthusiasts.
  • Collaborative Working: Spend time working on hardware, programming, or gaming projects.
  • Knowledge Exchange: Share ideas, insights, and skills with other retro computing fans.
  • Advice on Repair and Upgrade: Get tips and tricks for reviving and upgrading your Acorn machines.
  • We’ll have tea, coffee and biscuits on hand through the day.
  • All Are Welcome : While the event is primarily Acorn-centric, we also welcome enthusiasts of other retro machines. Past events have seen participation from fans of Sinclair, Atari, Commodore, Altair, and more.

Location

Falkirk Business Hub
45 Vicar St, Falkirk FK1 1LL
Access: Use the side door on Vicar Street, which also has disabled access.

The venue is a contemporary setting just a 2-minute walk from Grahamston Train Station, with easy access to the M9 motorway between Stirling and Edinburgh. Numerous bars and restaurants are nearby for post-event socializing. There is a car park next to the building which is free in the evenings.

Recommended Car Parks

Weir Street Car Park: Adjacent to the venue
Melville Street Car Park: One street away

https://falkirkbusinesshub.co.uk/ – a contemporary venue centrally located, just a 2-minute walk from Grahamston Train Station and with seamless access to the M9 motorway between Stirling and Edinburgh. Numerous bars and restaurants are nearby for post-event socializing.
There is a car park next to the building which is free in the evenings.
Building includes disabled access and lifts.

Image

We will be using the large seminar room which can be sectioned off for workshops

 

Tagged With: ABUG, Acorn, archimedes, Atom, BBC Micro, Day Event Special, Electron, Scotland

The I.T. Crowd (Scotland) : Retro User Computer Group June 2024

June 6, 2024 by Paul Bussey

This is a gathering for lovers of any retro microcomputers, especially those fond of the BBC Micro, Acorn Electron, Atom, and Archimedes/RISC OS machines. This event is aimed at bringing together a community of like-minded individuals in a comfortable and modern setting – the Falkirk Business Hub, in central Falkirk, Scotland.

Thursday 27th June 2024 7:00PM running until 10:00PM

🕹 Event Features:

This is an informal gathering for…

  • – Show and Tell: Bring your own hardware to display and discuss with others.
  • – Collaborative Working: Spend time on hardware, programming, or gaming projects.
  • – Knowledge Exchange: Share ideas, insights, and skills with other enthusiasts.
  • – Advice on Repair and Upgrade: Reviving poorly Acorn machines.
  • – Socialize and Enjoy : There’s a kitchen for coffee, tea and biscuits. We’re in the town centre for bars, pubs and restaurants for potential afterwards gatherings.

🔎 June 2024 Hardware Focus : Interfacing with the outside world

Acorn machines in the main were blessed with a staggering range of internal and external expansion options that made it the ultimate platform for interfacing with all sorts of devices!

For this month’s session, let’s bring in and demonstrate some of the more popular (or weird and wonderful) devices you can connect to an Acorn machine, such as :-

  • Turtle Graphics Device – Used with LOGO to draw and create graphics.
  • Infra-red Touch Screen – For direct interaction with the computer interface.
  • Analogue 3D Joystick (The Bitstick) – For advanced gaming and 3D applications.
  • Light Pens – For precise drawing and selecting on the screen.
  • Stylus Touch Pads – For graphic design and drawing tasks.
  • Musical Instrument Digital Interface (MIDI) Devices – Used with synthesizer keyboards and other audio equipment.
  • Robot Arm – For educational programming and robotics projects.
  • Philips LaserDisc Player – Connected via the BBC Domesday System for interactive video playback.
  • Sound Samplers – Devices for recording and manipulating sound.
  • Temperature Sensors – For scientific experiments and data logging purposes.
  • Satellite Receiver – For receiving and processing satellite signals. (I had one of these!)

💻 All Are Welcome:
While the event tends to be Acorn-centric, we could welcome enthusiasts of other retro machines as well. We’ve had Sinclair, Atari, Commodore, Altair etc.

📅 Date & Time:
Thursday 27th June 2024 7:00PM running until 10:00PM

📍 Location: Falkirk Business Hub

45 Vicar St, Falkirk FK1 1LL

Access : use the side door on Vicar Street. This also has disabled access.

Image

https://falkirkbusinesshub.co.uk/ – a contemporary venue centrally located, just a 2-minute walk from Grahamston Train Station and with seamless access to the M9 motorway between Stirling and Edinburgh. Numerous bars and restaurants are nearby for post-event socializing.
There is a car park next to the building which is free in the evenings.
Building includes disabled access and lifts.

Image

🚗🅿 There are two recommended car parks:-

i) Weir street car park which is next to the venue. Free parking in the evenings
ii) Melville street – one street away – also free in the evenings.

Tagged With: Acorn, archimedes, Atom, BBC Micro, Electron, Peripherals, Retro

The I.T. Crowd (Scotland) : Retro User Computer Group May 2024

May 6, 2024 by Paul Bussey

 

This is a gathering for lovers of any retro microcomputers, especially those fond of the BBC Micro, Acorn Electron, Atom, and Archimedes/RISC OS machines. This event is aimed at bringing together a community of like-minded individuals in a comfortable and modern setting – the Falkirk Business Hub, in central Falkirk, Scotland.

Thursday 30th May 2024 7:00PM running until 10:00PM

🕹 Event Features:

This is an informal gathering for…

  • – Show and Tell: Bring your own hardware to display and discuss with others.
  • – Collaborative Working: Spend time on hardware, programming, or gaming projects.
  • – Knowledge Exchange: Share ideas, insights, and skills with other enthusiasts.
  • – Advice on Repair and Upgrade: Reviving poorly Acorn machines.
  • – Socialize and Enjoy : There’s a kitchen for coffee, tea and biscuits. We’re in the town centre for bars, pubs and restaurants for potential afterwards gatherings.

🔎 May 2024 Hardware Focus : Econet and networking : Software Focus – multi-player games

  • Econet Networking Demo: Let’s set up some Acorn computers with Econet hardware and demonstrate how Econet networking works. Show how files can be shared among connected computers.
  • Acorn Econet Computer Showcase: bring your Acorn computers, especially those with Econet interfaces, to showcase and discuss your setups.
  • Econet Troubleshooting: Experienced members can offer guidance and assistance in diagnosing and solving problems on networking Acorn machines together.
  • Multiplayer Gaming Sessions: Econet Elite anyone? Let’s get some multiplayer gaming sessions set up!

Other networking activities:-

  • Bulletin Board : Stardot user BrianMartin runs the “Night Owl” Bullentin Board – let’s see if we can connect to that or have it up and running at the meetup
  • Connecting together other makes of retro machines locally or to others across the world.

💻 All Are Welcome:
While the event tends to be Acorn-centric, we could welcome enthusiasts of other retro machines as well. We’ve had Sinclair, Atari, Commodore, Altair etc.

📅 Date & Time:
Thursday 30th May 2024 7:00PM running until 10:00PM

📍 Location: Falkirk Business Hub

45 Vicar St, Falkirk FK1 1LL

Access : use the side door on Vicar Street. This also has disabled access.

Image

https://falkirkbusinesshub.co.uk/ – a contemporary venue centrally located, just a 2-minute walk from Grahamston Train Station and with seamless access to the M9 motorway between Stirling and Edinburgh. Numerous bars and restaurants are nearby for post-event socializing.
There is a car park next to the building which is free in the evenings.
Building includes disabled access and lifts.

Image

🚗🅿 There are two recommended car parks:-

i) Weir street car park which is next to the venue. Free parking in the evenings
ii) Melville street – one street away – also free in the evenings.

Tagged With: Acorn Archimedes, Acorn Atom, Acorn Electron, BBC Micro, Econet, Sinclair, Spectrum, ZX81

The I.T. Crowd (Scotland) : Retro User Computer Group Apr 2024

April 1, 2024 by Paul Bussey

 

This is a gathering for lovers of any retro microcomputers, especially those fond of the BBC Micro, Acorn Electron, Atom, and Archimedes/RISC OS machines. This event is aimed at bringing together a community of like-minded individuals in a comfortable and modern setting – the Falkirk Business Hub, in central Falkirk, Scotland.

Thursday 25th April 2024 7:00PM running until 10:00PM

🕹 Event Features:

This is an informal gathering for…

  • – Show and Tell: Bring your own hardware to display and discuss with others.
  • – Collaborative Working: Spend time on hardware, programming, or gaming projects.
  • – Knowledge Exchange: Share ideas, insights, and skills with other enthusiasts.
  • – Advice on Repair and Upgrade: Reviving poorly Acorn machines.
  • – Socialize and Enjoy : There’s a kitchen for coffee, tea and biscuits. We’re in the town centre for bars, pubs and restaurants for potential afterwards gatherings.

🔎 April 2024 Software Focus : Adventure Games and Hardware Focus : Spring Cleaning

I’ll be including a specially written version of “The Hobbit” – “Exploring Wilderland” written in BASIC on a BBC Micro that allows you to explore the original map of the game and it includes NPCs (remember Thorin and Gandalf?) with some additional programming to make them a little more…unpredictable. Just like in the original – wild things may happen! I’ll include a kiosk powerpoint on how I approached this coding project.

Bring along your own favourite text adventure/graphic adventure game and experience text/graphic adventures the way they were meant to be played—on vintage hardware. We’ll have setups ready for you to step back in time and immerse yourself in nostalgia.

Spring Cleaning
Bring along a machine that needs a spring clean and demonstrate or ask advice on the best approaches to clean keyboards, edge connectors or circuit boards.

💻 All Are Welcome:
While the event tends to be Acorn-centric, we could welcome enthusiasts of other retro machines as well. We’ve had Sinclair, Atari, Commodore, Altair etc.

📅 Date & Time:
Thursday 25th April 2024 7:00PM running until 10:00PM

🔎 April 2024 Special Focus : TBC

📍 Location: Falkirk Business Hub

45 Vicar St, Falkirk FK1 1LL

Access : use the side door on Vicar Street. This also has disabled access.

Image

https://falkirkbusinesshub.co.uk/ – a contemporary venue centrally located, just a 2-minute walk from Grahamston Train Station and with seamless access to the M9 motorway between Stirling and Edinburgh. Numerous bars and restaurants are nearby for post-event socializing.
There is a car park next to the building which is free in the evenings.
Building includes disabled access and lifts.

Image

🚗🅿 There are two recommended car parks:-

i) Weir street car park which is next to the venue. Free parking in the evenings
ii) Melville street – one street away – also free in the evenings.

Tagged With: Acorn, archimedes, Atom, BBC Micro, Commodore, Electron, Sinclair, ZX Spectrum

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Recent Posts

  • Mythic Map
  • 2026 01 : Falkirk, Business Hub – The I.T. Crowd (Scotland)
  • 2026 01 : Cordoba, La Zona – Retrobytes Mini Meetup
  • Exploring Wilderland – Map of the Game
  • The Hobbit : Exploring Wilderland Completed
  • The Hobbit : Exploring the Wilderland
  • The Lords of Midnight : Landscaping
  • Notes on Owlet – A Modern BBC Basic Editor
  • Solid State Storage for a BBC Micro
  • Programming Project : Space Probe
  • Using a BBC Micro B with an HDMI Monitor
  • Acquiring a 40 year old refurbished BBC Micro B Computer

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The Venue

We meet at the Falkirk Business Hub.

Learn more about it here

The blog

Learn about my “rediscovery” of the BBC Micro B here in my blog

Recommended Resources

As I discover them I’ll be logging useful resources for Acorn machines HERE.